<div class="col-sm-2">
    <a href="#" class="list-group-item active">用户管理</a>
    <a href="/admin/userlist" class="list-group-item <%= flag==1?'current':''%>">
        用户列表</a>
    <a href="/admin/adduser" class="list-group-item <%= flag==2?'current':''%>">
        添加用户</a>
    <a href="#" class="list-group-item active">商品管理</a>

    <a href="/product/productlist" class="list-group-item <%= flag==3?'current':''%>">
        商品列表</a>
    <a href="/product/addproduct" class="list-group-item <%= flag==4?'current':''%>">
        添加商品</a>

    <a href="#" class="list-group-item active">分类管理</a>

    <a href="category.html" class="list-group-item <%= flag==5?'current':''%>">
        分类列表</a>
    <a href="addcate.html" class="list-group-item <%= flag==6?'current':''%>">
        添加分类</a>
</div>